36815778346 has 4 divisors (see below), whose sum is σ = 55223667522. Its totient is φ = 18407889172.

The previous prime is 36815778341. The next prime is 36815778353. The reversal of 36815778346 is 64387751863.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34149192025 + 2666586321 = 184795^2 + 51639^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (36815778341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9203944585 + ... + 9203944588.

Almost surely, 2^36815778346 is an apocalyptic number.

36815778346 is a deficient number, since it is larger than the sum of its proper divisors (18407889176).

36815778346 is a wasteful number, since it uses less digits than its factorization.

36815778346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18407889175.

The product of its digits is 20321280, while the sum is 58.

The spelling of 36815778346 in words is "thirty-six billion, eight hundred fifteen million, seven hundred seventy-eight thousand, three hundred forty-six".